Variação da temperatura superficial dos músculos masseter e temporal anterior durante o apertamento dental voluntário com placas interoclusais maxilares de duas diferentes espessuras

Muscle activity has been studied indirectly through analyses of temperature variation in skin surface temperature on the masticatory muscles. These procedure may be an important tool for clinical evaluation and assessment of the evolution of temporomandibular disorders, as well as monitoring the adopted protocol. Thus, its utilization for identified pathological alterations on blood circulation and/or on metabolic activity in subcutaneous tissues, such as the masticatory muscles, is justified. The aim of this study was to investigate the effect of occlusal splints’ thickness on the variation of surface temperature of the anterior temporal and masseter muscles during rest and clenching. It were analyzed 20 symptomatic subjects (10 males and 10 females) selected through the Research Diagnostic Criteria (RDC) questionnaire. Temperature expressed in degrees Celsius (ºC) was measured on the surface of both muscles measured with the aid of a digital thermometer with an infrared radiation reading system. The surface temperature of the anterior temporal and masseter muscles presented significant reduction during teeth clenching in relation to the mandibular rest position. However, there were no significant differences between conditions with and without occlusal splint or between the different thicknesses of splints analyzed. Masticatory muscles showed a considerable similar behavior for both sides, and no significant distinctions were observed between male and female patients.

Relation between bruxism and dental implants

OBJECTIVE: The aim of this study was to gather information and discuss the predictability of implant-supported prostheses in patients with bruxism by performing a literature review. METHODS: In order to select the studies included in this review, a detailed search was performed in PubMed and Medline databases, using the following key words: bruxism, dental implants, implant supported prosthesis, and dental restoration failure. Items that were included are: case reports, randomized controlled trials, in vitro studies, literature and systematic reviews, with or without meta-analysis, of the last 20 years that addressed the theme. Articles without abstracts, animal studies, articles in languages other than English and articles from journals unrelated to the dental field were excluded. RESULTS: after analysis according to inclusion and exclusion criteria, 28 articles were selected from a total of 54. It is known from the array of scientific articles which have assessed, either through retrospective, prospective or experimental studies, that the biomechanical and biological impact of bruxism on implant-supported prostheses is small, and that the literature has contributed little to exemplify the prosthetic limits of safety for the specialist from a clinical point of view. CONCLUSION: Although there is still no general consensus on this matter, most of the literature review articles do provide clinical guidelines that contribute to implant supported prostheses longevity and stability in patients with bruxism.

A dental caries preventive program applied to children aged 5 to 8 years attending since the first year of age at the Baby Clinic of the Araçatuba Dental School, Brazil

Objective: Tooth decay is one of the more common diseases of childhood. Several studies recommend that early preventive measures must be implemented since the first years of life and continue throughout childhood and adolescence. The aim of the this study was to present results of a preventive dental program considering oral health maintenance, dental caries experience and the prevalence of dental caries relation with follow-up compliance visits. Material end method: Intraoral and interproximal radiographic exams were performed on 171 patients participants of a preventive dental program. Data regarding age, gender, previous caries experience and the frequency at which the patients attended return visits were obtained from the records. The data were analyzed statistically by the McNemar test, with the level of significance set at 1%. Result: Clinical and radiographic examination revealed that most children participating in the program had sound teeth (77.2 and 84.8%, respectively). The past dental history of the dental caries from patients included in this study showed statistical relevance when associated with the present dental caries experience and a statistical relationship was found from the absence of compliance to clinical visits and the dental caries presence. Conclusion: The preventive strategy had a positive influence on oral health maintenance in the children examined. Previous caries experience and the lack of compliance with return visits influenced the clinical oral condition of the children during participation in the preventive program.

Fios ortodônticos superelásticos e sua aplicabilidade na clínica ortodôntica: revisão da literatura

During clinical routine, the orthodontist uses several materials, which include metallic alloys in the form of metallic wires. However, it is necessary that the professional has some knowledge of the properties of those wires. Different types of wires are commercially available: stainless steel wires, chrome-cobalt wires, nickel-titanium wires and beta-titanium wires. Among the nickel-titanium wires, there are three subdivisions: a conventional alloy and two superelastic alloys. The superelasticity, associated to the effect of form memory, is a property used in orthodontics to initiate the dental movement in the first phase of the orthodontic treatment. This property is considered to be biologically compatible with the effective dental movement. These wires are available at the market in different transformation temperatures, and they offer the best adaptation in the groove of the bracket, simplicity and a faster treatment. However, they present little formability, and they don’t accept solder. They are also more onerous than other wires. Moreover, the low rigidity of these wires doesn’t allow them to be used for the retraction of the anterior teeth or closing of spaces. Therefore, the coherent use of superelastic orthodontic wires is recommended, accompanied by a detailed diagnosis and planning, so the result will be an efficient orthodontic correction, accomplished in a shorter period of time.

Movimentação dentária e aplicabilidade na clínica ortodôntica

A Ortodontia apresenta como um de seus pilares de sustentação as reações biológicas provenientes da indução mecânica. Desde seu início, vários estudos foram realizados para esclarecer os eventos biológicos decorrentes da movimentação dentária sob indução mecânica. Entretanto, mesmo sabendo-se que entre os procedimentos mecânicos e os fenômenos biológicos que acontecem no cotidiano ortodôntico não deve ocorrer disparidade, frequentemente observa-se uma preponderância para a busca do tipo de aparelhagem e o emprego de forças controladas, principalmente pelos fios. Esses aspectos deixam transparecer, principalmente para o profissional menos experiente, que somente o controle mecânico rege a movimentação dentária. Um exemplo que enfatiza exclusivamente o procedimento mecânico nos cursos de Ortodontia é o typodont. Convém salientar que essa metodologia de ensino é válida para simular a movimentação dentária no aspecto técnico-mecânico, porém, o conhecimento biológico da movimentação deve ter o mesmo nível de importância e não pode haver dicotomia; caso contrário, o resultado da movimentação ortodôntica pode causar prejuízos nas estruturas radiculares, óssea e periodontais, bem como comprometer as diversas estruturas em longo prazo.

La informática en el consultorio odontológico y el uso de los regsitros digitales

The use of computers in dental clinics has brought many benefits to dentist, helping them in various technical, administrative and legal. This study aimed to verify whether dentist, students of the post-graduate course in Orthodontics and Implantodontia of the Brazilian Association of Dentistry (ABO), regional Araçatuba-SP, using computers and digital documentation in clinical practice. They were invited to participate in the study all 60 students enrolled in courses of Orthodontics and Implantodontia of those institutions, in the year 2007 and those who consented (n = 52) answered a questionnaire containing questions open and closed on the subject . As the profile of the participants, 64.5% are male, 51.9% are between 30-39 years of age and 48.1% completed the graduation in the 90th. A 69.3% said they didn't receive any notion of computing during graduation and 67.3% use the computer in the office, mainly for management of the same (34.3%). Regarding the use of electronic record 55.8% reported using this technology, while 44.2% denied. 32.7% do not believe that electronic records that can serve as proof of judicial and 35.7% believe that the electronic records should be archived for 20 years. It follows that most professionals use the computer in the office and also the digital records, but does not feel secure about the legal validity of such documents, unknown, including the appropriate time of its filing.

Avaliação clínica de três sistemas de remoção minimamente invasivos do tecido cariado

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação clínica da efetividade do clareamento de consultório sem troca do gel clareador

Esse trabalho teve como objetivo avaliar, clinicamente, a efetividade de dois agentes clareadores aplicados sobre a superfície dentária durante 45 minutos, sem troca do gel. Foram selecionados 10 pacientes de acordo com os critérios de inclusão e exclusão, e a arcada superior dos pacientes foi dividida em duas hemiarcadas (n = 10): na hemiarcada direita (HD), foi aplicado o peróxido de hidrogênio a 35% (PH) Clàriant Office (Angelus); e, na hemiarcada esquerda (HE), o PH 38% Opalescence Boost (Ultradent). Foram realizadas duas sessões clínicas, de 45 minutos cada, com intervalo de uma semana entre as sessões. Inicialmente, ao tratamento clareador, os pacientes receberam profilaxia, moldagem para guia de mensuração de cor com silicone de condensação e avaliação de cor por meio de um aparelho espectrofotômetro Vita Easyshade (Vita Zhanfabrik, Alemanha). Após 14 dias do término do tratamento clareador, foi realizada a mensuração final da cor dos dentes. Os dados foram submetidos ao teste t e de Tukey (p < 0,05). Os resultados demonstraram não haver diferença estatisticamente significativa entre as hemiarcadas quanto à efetividade do clareamento (p = 0,146) e nem quanto à sensibilidade. Pode-se concluir que a aplicação dos materiais avaliados sem troca do gel, por 45 minutos, foi eficaz em promover o clareamento de dentes vitais e com baixa sensibilidade dentária.

Avaliação clínica da nova técnica de clareamento no consultório sem a remoção do gel clareador

Este trabalho teve como objetivo avaliar longitudinalmente um novo protocolo para técnica de clareamento de dentes vitais em consultório. Foram selecionados 20 pacientes, com critérios preestabelecidos, e divididos aleatoriamente, de acordo com o produto utilizado, em 2 grupos (n=10): Grupo 1 — Opalescence Xtra Boost (Ultradent); e Grupo 2 — White Gold Office (Dentsply). Os agentes clareadores foram aplicados apenas uma vez, durante 45min, e cada paciente submetido a duas sessões clareadoras. Para avaliação da cor inicial dos dentes, após 1 mês e após 3 meses do tratamento clareador, foi utilizada a escala de cor Vita Clássica, ordenada pela luminosidade. Concluiu-se que não há diferença no clareamento ou sensibilidade dentária entre os grupos, sendo desnecessária a troca do gel clareador e/ou a utilização de fonte de luz para os agentes clareadores avaliados.

Avaliação clínica do clareamento no consultório: técnica de aplicação única do agente clareador

This study aimed to evaluate the clinical effectiveness of two bleaching agents without changing the whitening gel during the clinic session 1X45minutos. 10 patients were selected according to the criteria of inclusion and exclusion and upper arch of the patients were divided into two quadrants (n: 10), G1: gel clareador Clàriant Office (hidrogênio35 Angellus) peroxide% (PH) in superior right side (LD) and the gel WhitenessHp Blue (FGM) PH 35% on the superior left side (LE. 2 clinical sessions were accomplished, 45 minutes each, with an interval of one week between sessions. At first the bleaching treatment patients received prophylaxis, molding to guide measurement of color with condensation silicon and the color evaluation through the apparel spectrophotometer VITA Easyshade (Vita Zhanfabrik, Alemanhã). 14 days after the end of the bleaching treatment was performed the measurement final color of the teeth. The patients reported sensitivity in scale 0-4. The result showed that through T Test comparing quadrants presented no statistical differences (p>0,05) in relation to coloration and dental sensibility. It can be concluded that the materials evaluated are effective for bleaching vital teeth with low tooth sensibility.

Protocolo de biossegurança e gerenciamento de resíduos no ensino de radiologia odontológica da Faculdade de Odontologia de Araçatuba-UNESP

In dentistry, the technic and radiographic processing incur the possibility of cross infection and environmental contamination. The dentist is responsible for the patient and dental team. For this reason he needs to take a protocol to prevent the spread of microorganisms and environmental exposure to risk factors. The protocols are introduced in the dentistry school as an important teaching tool, whose learning and application reinforce the importance of continuity of these actions in the professional activity. The objective of this paper is to present the biosafety and waste management protocol used in the dental radiology clinic of Araçatuba Dental School, including procedures for the prevention of biological and environmental contamination.

Biossegurança na clínica de radiologia odontológica

In the practice of dental radiology, although there was no production of aerosols, there is the contamination of equipment and surfaces by contact with blood and saliva. This is making necessary the adoption infection control procedures to protect patients and staff. The objective of this paper is to present the procedures of prevention during the radiographic examination and radiographic processing in the darkroom. The proposed recommendations for the area of Dental Radiology include efficient cleaning and protection of equipment and surfaces, personal protective measures and to avoid contamination of the darkroom. These recommendations are obtained by simple procedures as cover films and radiological equipment with plastic barriers.

Avaliação clínica e radiográfica de pacientes submetidos ao levantamento da membrana do seio maxilar

Implant dentistry is a dental specialty which presents great predictability in the rehabilitation at posterior, partially edentulous maxillary areas. Early tooth loss results in significant jaw remodeling. The maxillary sinus lifting followed by implant placement is a predictable technique initially described in 1980. Since then, several different techniques have been investigated varying filling materials and the management of complications in order to provide effective guidance in the rehabilitation of these patients. The current study evaluated ten patients who underwent sinus lifting before implant placement and crown installation. First, a retrospective analysis of the medical records was conducted to obtain information about possible postoperative complications. Clinical and radiographic analyses were performed at baseline and 180 days after surgeries. The sinus lifting with immediate implant placement provided satisfactory outcomes and can be considered a safe procedure. Treatment predictability was demonstrated in 90% of patients and for 86.96% of implants placed. It is important to highlight knowledge of anatomical structures at this area, the use of delicate surgical techniques, and strict patient follow-up.

Clínica de odontología : la orientación hacia el paciente

En el ámbito de la relación profesional odontólogo-paciente, se verifica la tendencia hacia la consideración del lugar que ocupa el paciente como sujeto portador de derechos, lo que se complementa con un modelo de teorías y acciones orientadas primero hacia la salud y luego hacia la enfermedad. Proponemos, a modo de introducción, una perspectiva interdisciplinaria basada en la imbricación de factores de orden socio-cultural y una filosofía de trabajo centrada en el reconocimiento del rol de paciente como sujeto que demanda acciones en favor de su salud.